Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 6    No. 3    September 1996

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EFFECT OF MILLING INTENSITY ON STRUCTURAL CHANGES OF MIXED Al-Fe-Ni POWDERS IN MECHANICAL ALLOYING PROCESS
Liu Zuyan, Liang Guoxian, Wang Erde

School of Materials Science and Engineering,Harbin Institute of Technology, Harbin 150001

Abstract:Mixed elemental aluminium, nickel and iron powders in the composition of Al-4.9 Fe-4.9Ni were mechanically alloyed under various milling intensities. The results showed that milling causes refinement of the microstructure. The powders with grain size(GS) of the nanometer order were produced after milling. The increasing of ball to powder weight ratio(BPR) and rotational velocity(RV) accelerates the refinement of the grain and the particle of iron and nickel in aluminium matrix, and an approximate formula has been put forward according to the experimental results to quantitatively describe the change of GSversusBPR and RV.

 

Key words: Al-Fe-Ni powder structural change milling intensity mechanical alloying

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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